An American Symphony ("Mr. Holland's Opus") is the symphonic piece played at the end of the 1995 film Mr. Holland's Opus. It was written by American composer Michael Kamen, and it won the 1997 Grammy for Best Instrumental Arrangement.
The lead character, Mr. Holland, can be seen working on the piece (at the piano and on scraps of sheet music) throughout the film. At the end of the film, the music comes to represent Holland's "opus" – as the many generations of students that he influenced come together to play his symphony for him – during the film's resolution.